$\begin{array}{1 1}(a)\;\large\frac{1}{15}\normalsize ln\large\frac{44}{35}&(b)\;\large\frac{1}{15}\normalsize ln \large\frac{35}{44}\\(c)\;\large\frac{1}{15}\normalsize ln\large\frac{44}{26}&(d)\;\large\frac{1}{15}\normalsize ln\large\frac{35}{26}\end{array}$